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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-157</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>ЗАДАЧА МИНИМАЛЬНОГО ПОПОЛНЕНИЯ ДВУДОЛЬНОГО ГРАФА</article-title><trans-title-group xml:lang="en"><trans-title>CLUSTERING MINIMUM BICLIQUE COMPLETION OF A BIPARTITE GRAPH</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ДУГИНОВ</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>DUGINOV</surname><given-names>O. I.</given-names></name></name-alternatives><email xlink:type="simple">oduginov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>КУЗНЕЦОВА</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>KOUZNETSOVA</surname><given-names>I. G.</given-names></name></name-alternatives><email xlink:type="simple">irene.kuzn@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики НАН Беларуси, Минск</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus, Minsk</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный университет, Минск</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State University, Minsk</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>07</day><month>06</month><year>2016</year></pub-date><volume>59</volume><issue>6</issue><fpage>24</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ДУГИНОВ О.И., КУЗНЕЦОВА И.Г., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">ДУГИНОВ О.И., КУЗНЕЦОВА И.Г.</copyright-holder><copyright-holder xml:lang="en">DUGINOV O.I., KOUZNETSOVA I.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://doklady.belnauka.by/jour/article/view/157">https://doklady.belnauka.by/jour/article/view/157</self-uri><abstract><p>Рассматривается графовая задача, в которой задан двудольный граф с выделенной долей и требуется добавить в граф наименьшее число дополнительных ребер так, что множество вершин выделенной доли получившегося графа можно разбить на заданное число непустых множеств, каждое из которых содержит только вершины с одинаковыми окружениями. В работе установлено, что задача является NP-трудной в классе P4-свободных двудольных графов и предлагается алгоритм, который решает задачу в классе 2K2-свободных двудольных графов.</p></abstract><trans-abstract xml:lang="en"><p>In this article we show that the clustering minimum biclique completion problem is NP-complete in the class of P4-free bipartite graphs. We have also proposed a dynamic programming algorithm for that problem restricted to 2K2-free bipartite graphs.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пополнение двудольного графа</kwd><kwd>классы графов</kwd><kwd>вычислительная сложность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>clustering minimum biclique completion problem</kwd><kwd>graph classes</kwd><kwd>computational complexity</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Лекции по теории графов / В. А. 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